met up while in russia last year there are suggestions he may have associated with known militants in dagestan, and congressman peter king went into some detail on that last night. >> may well be more than two. i mean, we have two students being held -- i'm aware of at least four or five people being looked at, and, again, talking -- >> domestically? >> yes,. >> people here in the united states. >> yes, people -- associates who may turn out no involvement at all. >> the fbi not commenting on any of that this afternoon. >> shepard: back to the dna samples thefed took from the bombing suspect's widow. with us now the former new york state lee asewn to homeland security. >> afternoon. >> shepard: i don't know. she is got to be at least looked at closely. >> she is, and the point is, as you know, not to let the evidence have any bias. it takes you where it takes you. it's happening, every threat is being pulled out from everybody roz life to see what happened. there's some big questiones. how did you assemble the bomb? where? did you try it before stand what was going on in the six months he was o